Stories of successful people witness of their courage and grit how they achieved their goal despite all hurdles. They are torch beareres to strugglers.
Keep your Face to the SunShine
And the success of a person also should not overwrite him to lose the touch and rhythm of working successfully towards society. We must strike a balance between successful and unsuccessful attempts and must not disturb our endeavour.
If there is a failure, go on worrying about that will not bring you success. Think about why there is a failure. Understand where you went wrong. Think of corrections required. Do the changes and retry. Success will be yours. This is is how one should behave when there is a failure.